Information other than ufov, such as driving habits, driving record, medical conditions, and other relevant. Acr nuclear medicine technologist quality control list. Ge millennium mg specifications parameter range data available imaging area 37 x 52 cm no cutoff corners 14. Basic principles of gamma camera imaging and quality control.
It is used for clinical studies producing better image and making diagnosis easier. These are calculated for both the central field of view cfov and useful field of view ufov of the gamma camera respectively. Manufacturing and remanufacturing an economical and ecological approach to gamma camera. Most gamma cameras can be used in three essentially different modes. Jun 21, 2002 a small, portable and lowcost gamma camera for medical applications has been developed and clinically tested. The qc values were found in conformity with the manufacturers specification and the produced images which were used for diagnostic purposes are upto satisfactory level. Pdf quality control of gamma camera with spect system is highly valuable for. Cfov and useful field of view ufov of the gamma camera. Measurement of uniformity and multiple head registration mhr. Quality control of gamma camera with spect system is highly valuable for assurance performance characteristic. Evaluation of different physical parameters that affect the. List performance characteristics of gamma cameras and features affecting performance. For a digital test obtain the passfail criteria from the quality control technologist.
It is one of the primary tests performed on the gamma cameras 1. Pdf quality control of gamma camera with spect systems. Development of nemabased software for gamma camera quality control andrew rova,1 anna celler,2,3 and ghassan hamarneh1 we have developed a crossplatform software applica tion that implements all of the basic standardized nuclear medicine scintillation camera quality control analyses, thus serving as an independent complement to camera. Gamma camera and data processor system tender questionnaire. Pdf intrinsic uniformity test for a dual head spect gamma camera. Nuclear medicine physics course mcgovern medical school. We report the performance characteristic of gamma camera by intrinsic calibration and verification measurement. Pdf development of nemabased software for gamma camera. Notice the outline drawn slightly inside the edge of the crystal example ii. Once the camera is delivered and installed, verification of the camera specifications constitutes the first quality control test which is performed on the system. A gamma camera is a perfect device for detecting nuclear fission products from either nuclear detonations or nuclear power plant reactors accidents. According to operating in struction symbia system s series manual, uniformity can. Gamma camera intrinsic uniformity in an unstable power supply.
Development of nemabased software for gamma camera quality. A new gamma camera at a fraction of the cost drawing on many years of manufacturing experience since 1981, mie have developed a system of remanufacturing to deliver cost effective process is also ce certifed and fda registered. We report the performance characteristic of gamma camera by intrinsic calibration and. Ufov should be viewed as one source of information that may aid in forming opinions about an examinees ability to drive safely. The corcam features two fi xed 90degree detectors each with a 36cm x 20. The integral and differential intrinsic uniformity test for both useful field of view ufov and central field of view cfov are done by placing a.
The spect system is more sensitive than the ordinary gamma camera, but the cost of purchase and maintenance is relatively high 1. The integral uniformity has typical values of 2% to 4% 3. Planar scintigraphy used in nuclear medicine imaging emission imaging radioactive source inside patients body in both spect and planar scintigraphy radiation source used mainly 99 a 140 kev rays hence the name gamma camera. Pdf optimization of uniform field of view and centre. They were calculated for both the central field of view cfov ufov of the gamma camera. Capimage is a small field of view gamma camera system ideal for imaging small organs and body parts including the thyroid, parathyroid, planar bone images, and gated cardiac studies. The dead time of our gammacamera system was found to be 4. Describe how to perform basic qc tests and assess acceptable performance. Portable mini gamma camera for medical applications. Pdf quality control of gamma camera with spect system is highly valuable for assurance performance characteristic. Intrinsic uniformity and relative sensitivity quality control. Imaging and detectors for medical physics lecture 5. The amount of radiation you receive depends on the examination being performed. Edge packing higher sensitivity at edge statistical variation.
The study has been done using the data from siemens symbia s series gamma camera. Gamma camera systems are chosen based on departmen tal needs and the specifications which the manufacturers define as the camera performance characteristics. Ufov assessment manual visual awareness research group, inc. The applications of scintigraphy include early drug development and nuclear medical imaging to view and analyse images of the human body or the distribution of. Iaea quality control atlas for scintillation camera. Ddd was founded in 1987 and has been involved in design and development of some of the most successful gamma camera systems in cooperation with major international vendors of medical. A technique for automatically extracting useful field of view and. Gamma camera point source 400800 uci 5 ufov diameter distance 515 million counts min. Development of nemabased software for gamma camera. It is also one of the indices used to measure the performance of a gamma camera. Lars johansson, in principles of translational science in medicine. Effect of source to camera distance and count rate on. This camera, based on a scintillator crystal and a position sensitive photomultiplier tube, has a useful field of view of 4. Your nuclear medicine gamma camera scan continued are there any risks.
The teaching medical physics resources are designed for teaching 1416 science using examples from medical physics. Qc of planar imaging virginia commonwealth university. Therefore, small volume portable gamma cameras will have high. Development of nemabased software for gamma camera quality control article pdf available in journal of digital imaging 212. Collimators for a camera to work, we need to be able to reconstruct where the gamma ray came from. The calculation of uniformity indices such as integral and differential uniformity for the ufov and cfov of gamma camera is based on the national electrical. List qc tests for gamma cameras required by accrediting organizations.
Gamma camera model acquisition system model software version options required 1. The ufov assessment is designed to evaluate important cognitive skills required to drive safely. Max and min are the maximum and minimum pixel counts, respectively. This removes the edge packing effect, however, it may miss a pmt problem at the edge of the crystal. With our recommended parameters, the intrinsic uniformity and relative sensitivity quality control testing can be performed in 56 min.
Ddd is a well known oem manufacturer of gamma camera systems. Nuclear medicine scanning involves the use of radioisotopes and so has the usual risks associated with ionising radiation. The resources consist of six sets of presentations, worksheets and teacher notes that complement the institute of physics 2011 schools lecture from xrays to antimatter. The spect system is more sensitive than an ordinary gamma camera, so we should take a special technical support. Additionally, capimage provides a convenient platform for pediatric imaging. During installation, every gamma camera system needs some recommended qc as acceptance test to build up a baseline values for future quality assurance. The history plot gui tab, shown in figure 8, provides two graphs that visualize this information, one for the ufov and one for the cfov. Measurement of uniformity and multiple head registration.
Detector performance please state the performance parameters of the gamma camera as determined according to the methods specified by the national electrical manufacturers standards publication nu12001. The integral and differential intrinsic uniformity tests for both useful field of view ufov and centre field of view cfov were done by insertion a pointsource of 99m tc in front of the detectors with detached collimators to measure the effect of source to camera distance and a count rate on intrinsic uniformity. The three key elements for checking the gamma camera are. The main purpose of gamma camera with 2 spect system is to scan brain heart, respiratory, liver and kidney. List basic gamma camera calibrations and how they affect performance. Gamma camera imaging of quality assurance in radioactive. Fine tuning and alignment of the large field of view lfov. In old gamma cameras there were spectc t system 16. We are all exposed to radiation naturally background radiation. A comparison between two methods of performing the daily.
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